Scanning for malignant or inflammatory lesions with 67Ga citrate currently has a number of major limitations. In an effort to improve visualisation of the abdomen and pelvis, and to reduce the time between 67Ga citrate injection and the scan (usually 72 h) a series of patients was given an intramusc
67Ga-citrate distribution in solid hepatoma 22
✍ Scribed by F. Zayas; J. Oliva; A. Lage; J. W. Díaz; L. F. Alcorta; M. Warder; G. Lastra
- Book ID
- 104682513
- Publisher
- Springer
- Year
- 1984
- Tongue
- English
- Weight
- 376 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0340-6997
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✦ Synopsis
The intracellular distribution of 67Ga was studied in solid hepatoma 22 implanted in C3Ha/6 mice and in normal liver tissue from the same animals at different time intervals. The tissues were fractionated according to differential centrifugation principles, and subcellular fractions were isolated consecutively. The enzyme activities and the accumulation of 67Ga were determined in each fraction. The subcellular distribution of 67Ga in the tumor tissue was different compared with normal liver; in tumor it was found mainly in the nuclear fraction and this distribution was independent of time, but in normal liver the accumulation was mainly in the mitochondrial fraction, this was time-dependent and the maximal uptake was found 48 h after 67Ga administration.
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Distribution of 67Ga-citrate in inflammatory tissues was determined, and correlation between the 67Ga-uptake and capillary permeability of plasma from blood vessels in the inflammatory tissue was elucidated, by quantitative whole body autoradiography and double tracer autoradiography. The distributi